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Laguna Grande in October 2027: darkest nights

Reached by kayak through a mangrove channel. The easiest bio bay to reach from San Juan. Year-round.

15 pitch-dark nights, 16 dark nights

New moon Fri 29 Oct · Full moon Fri 15 Oct

Night by night, October 2027

NightMoon18:3020:30Best
Fri 1 Oct 6%●●●●●●●●●●20:30
Sat 2 Oct 12%●●●●●●●●●●20:30
Sun 3 Oct 19%●●●●●●●●●●20:30
Mon 4 Oct 28%●●●●●●●●●●20:30
Tue 5 Oct 37%●●●●●●●●●●20:30
Wed 6 Oct 47%●●●●●●●●●●20:30
Thu 7 Oct 57%●●●●●●●●●●20:30
Fri 8 Oct 66%●●●●●●●●●●20:30
Sat 9 Oct 74%●●●●●●●●●●20:30
Sun 10 Oct 82%●●●●●●●●●●20:30
Mon 11 Oct 89%●●●●●●●●●●20:30
Tue 12 Oct 94%●●●●●●●●●●20:30
Wed 13 Oct 98%●●●●●●●●●●18:30
Thu 14 Oct 100%●●●●●●●●●●18:30
Fri 15 Oct 100%●●●●●●●●●●18:30
Sat 16 Oct 97%●●●●●●●●●●18:30
Sun 17 Oct 93%●●●●●●●●●●18:30
Mon 18 Oct 86%●●●●●●●●●●18:30
Tue 19 Oct 78%●●●●●●●●●●20:30
Wed 20 Oct 68%●●●●●●●●●●20:30
Thu 21 Oct 56%●●●●●●●●●●20:30
Fri 22 Oct 44%●●●●●●●●●●20:30
Sat 23 Oct 33%●●●●●●●●●●20:30
Sun 24 Oct 22%●●●●●●●●●●20:30
Mon 25 Oct 13%●●●●●●●●●●20:30
Tue 26 Oct 7%●●●●●●●●●●20:30
Wed 27 Oct 2%●●●●●●●●●●20:30
Thu 28 Oct 0%●●●●●●●●●●20:30
Fri 29 Oct 1%●●●●●●●●●●20:30
Sat 30 Oct 4%●●●●●●●●●●20:30
Sun 31 Oct 8%●●●●●●●●●●20:30

Check one night in detail Laguna Grande tours

Questions

What are the best nights to see the bioluminescence at Laguna Grande in October 2027?

The darkest nights are Fri 1 Oct, Sat 2 Oct, Sun 3 Oct, Wed 20 Oct, Thu 21 Oct, Fri 22 Oct, Sat 23 Oct, Sun 24 Oct, Mon 25 Oct, Tue 26 Oct and more. 16 of 31 nights score at least 4 out of 5.

Which nights should I avoid in October 2027?

Avoid the nights around the full moon on Fri 15 Oct, when moonlight washes out the glow.

18:30 or 20:30: which Laguna Grande tour is darker in October?

18:30 is the darker choice on 1 nights; 20:30 is the darker choice on 18 nights.

Laguna Grande darkness by month

Darkness score 1-5 per tour slot from twilight and moonlight. Weather and plankton health are not included. Times are local (America/Puerto_Rico).